8081 Aluminum Sheet

Aluminum alloys in the 8000 series are widely used by our customers in the aluminum packaging industry. Among these alloys, 8081 is highly prized for its formability, impermeability, corrosion resistance, high tensile strength, and availability of multiple decorative finishes. Aluminum sheets made from 8081 can be hot or cold rolled depending on the requirement, and are used extensively in the manufacture of bottle caps.

8081 aluminum sheet products supplied by Inquivix Technologies can be delivered in the gauge (thickness), width, length, decorative finish, and temper state desired. We also offer industrial-grade aluminum plate, foil, and coil products as well as new scrap material. All Inquivix Technologies products are made to strict quality standards and can be delivered anywhere in the world.

8081 Aluminum Alloy Sheet Applications

Roll-On Pilfer-Proof (ROPP) Caps

Roll-On Pilfer-Proof (ROPP) Caps

Material Properties Of
8081 Aluminum

High in Tensile Strength, Lightweight, and Formable

8081 has high strength due to its unique chemical composition. It is also light and high in formability, allowing us to easily shape it into the end product our customers require. Both direct casting and continuous casting are feasible options with 8081 aluminum sheets. The alloy can be hot or cold-rolled depending on the specific material properties required for the end-user application.

Can Undergo Heat Treatment And Tempering

The surface of 8081 aluminum sheets has great adhesion properties. This makes it easy to manufacture sheets with a variety of finishes including mill finish, lacquered, or chromated depending on the type of decorative surface needed. This is how the various branding colors, designs, and labeling can be done easily for the PP bottle caps.

Excellent Barrier Properties

Aluminum alloy 8081 is corrosion-resistant. Furthermore, it exhibits excellent barrier properties, making it impermeable to gas, light, and liquids. These sealing properties are the main reason 8081 is highly valued by the packaging industry for closure applications. Roll-on-pilfer-proof caps also known as ROPP caps (or PP caps for short) are used to securely close wine, spirits, juice, soft drink, energy beverage, and isotonic beverage bottles are made using 8081 aluminum sheet products.


Just like any other type of aluminum alloy, 8081 can be easily and economically recycled without losing any of the unique material properties of the alloy. In addition to our aluminum products like sheets, coil, and foil, we also provide new scrap which can be recycled in a sustainable and environmentally-friendly way.

8081 Aluminum Sheet

Chemical Composition Of 8081 Aluminum Alloy

ElementPercentage By Weight
Aluminum (Al)79%
Tin (Sn)18 – 22%
Copper (Cu)0.7 – 1.3%
Silicon (Si)0 – 0.7%
Iron (Fe)0 – 0.7%
Manganese (Mn)0 – 0.1%
Titanium (Ti)0 – 0.1%
Zinc (Zn)0 – 0.05%
8081 Aluminum Sheet
8081 Aluminum Sheets

Physical Properties of Aluminum Alloy 8081

Width (mm)500 ~ 1000 mm
Thickness (mm)0.15 ~ 0.25 mm
Length500 ~ 1000 mm
Tempered StateH14/H16/H24/H26
Surface FinishMill, Lacquered, Chromated

What Our Customers Are Saying About Us

We’ve had a great partnership with Inquivix Technologies from the beginning. They have ensured that every batch of aluminum we receive is of the same superior quality. The timely delivery of their products has greatly helped in keeping our production schedule on track.

– Operations Manager, Beverage Company

Inquivix Technologies has been an exceptional supplier of aluminum that has consistently met our quality standards. Their on-schedule delivery, great customer service, and commitment to excellence have earned our trust and continued partnership.

– Production Manager, Consumer Goods Company

Inquivix Technologies has been an incredible partner as an aluminum supplier for our packaging operations. Working with them has allowed us to consistently meet our production timelines. Their customer service is outstanding, with a knowledgeable and responsive team. Overall, Inquivix Technologies has been an indispensable partner in our success, and we look forward to continuing our collaboration for many years to come.

– Purchasing Manager, Packaging Industry

Inquivix Technologies undoubtedly stands out as one of the best suppliers we have worked with. Their materials are high-quality and are always delivered on time, ensuring that our production timeline is never compromised in any way.

– Quality Control Technician, Automotive Parts Manufacturing

Other Aluminum Alloys Used For Sheet

Aluminum 3003 sheets

Aluminum 3003

Aluminum 1050 sheets

Aluminum 1050

Aluminum 5052 sheets

Aluminum 5052

Aluminum Alloy 7075 sheets

Aluminum 7075


What Is 8081 Aluminum Alloy?

8081 is an aluminum alloy that has a unique chemical composition with a high tin concentration compared to other alloys. This makes it strong, resistant to fatigue, and very tough in general. It has high corrosion resistance, excellent barrier properties, and is very formable, making it an ideal material to make pilfer-proof (PP) bottle caps.

What Is 8081 Aluminum Sheet Used For?

The impressive barrier properties of 8081 make it impermeable to light, gas, and liquids. It is also easy to decorate its surface due to adhesion properties. These two characteristics make the alloy useful for making pilfer-proof (PP) caps in a variety of designs for sealing bottles that contain wine, spirits, juice, soft drinks, energy drinks, isotonic drinks, and more.

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